APA استشهاد

Hill,Charles W L. (2003). International business (4th ed.). McGraw Hill..

استشهاد بنمط شيكاغو

Hill,Charles W L. International Business. 4th ed. Boston: McGraw Hill., 2003.

MLA استشهاد

Hill,Charles W L. International Business. 4th ed. McGraw Hill., 2003.